./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7b584daec49a40dea8b0111f29f8cb062ca3b12b5b166ebb1701b9de8e509ce --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 23:43:14,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 23:43:14,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 23:43:14,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 23:43:14,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 23:43:14,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 23:43:14,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 23:43:14,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 23:43:14,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 23:43:14,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 23:43:14,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 23:43:14,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 23:43:14,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 23:43:14,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 23:43:14,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 23:43:14,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 23:43:14,251 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 23:43:14,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 23:43:14,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 23:43:14,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 23:43:14,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 23:43:14,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 23:43:14,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 23:43:14,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 23:43:14,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 23:43:14,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 23:43:14,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 23:43:14,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 23:43:14,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 23:43:14,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 23:43:14,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 23:43:14,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 23:43:14,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 23:43:14,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 23:43:14,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 23:43:14,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 23:43:14,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 23:43:14,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 23:43:14,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 23:43:14,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 23:43:14,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 23:43:14,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 23:43:14,319 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 23:43:14,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 23:43:14,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 23:43:14,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 23:43:14,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 23:43:14,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 23:43:14,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 23:43:14,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 23:43:14,323 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 23:43:14,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 23:43:14,324 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 23:43:14,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 23:43:14,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 23:43:14,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 23:43:14,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 23:43:14,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 23:43:14,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 23:43:14,325 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 23:43:14,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 23:43:14,326 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 23:43:14,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 23:43:14,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 23:43:14,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 23:43:14,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 23:43:14,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:43:14,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 23:43:14,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 23:43:14,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 23:43:14,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 23:43:14,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 23:43:14,328 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 23:43:14,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 23:43:14,328 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 23:43:14,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 23:43:14,329 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 23:43:14,329 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7b584daec49a40dea8b0111f29f8cb062ca3b12b5b166ebb1701b9de8e509ce Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 23:43:14,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 23:43:14,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 23:43:14,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 23:43:14,660 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 23:43:14,660 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 23:43:14,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-08-30 23:43:15,721 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 23:43:16,189 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 23:43:16,189 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-08-30 23:43:16,232 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc286add/a6466682b0b04a5d9a4562ec24936b1a/FLAG88f4e3057 [2023-08-30 23:43:16,250 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fc286add/a6466682b0b04a5d9a4562ec24936b1a [2023-08-30 23:43:16,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 23:43:16,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 23:43:16,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 23:43:16,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 23:43:16,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 23:43:16,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:43:16" (1/1) ... [2023-08-30 23:43:16,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0122ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:16, skipping insertion in model container [2023-08-30 23:43:16,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 11:43:16" (1/1) ... [2023-08-30 23:43:16,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 23:43:16,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 23:43:16,682 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i[5469,5482] [2023-08-30 23:43:18,859 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:43:19,273 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:43:19,277 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:43:19,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:43:19,345 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 23:43:19,359 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i[5469,5482] [2023-08-30 23:43:19,540 WARN L633 FunctionHandler]: implicit declaration of function __builtin_constant_p [2023-08-30 23:43:19,590 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:43:19,590 WARN L1562 CHandler]: Possible shadowing of function iminor [2023-08-30 23:43:19,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function __builtin_constant_p is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,107 WARN L667 CHandler]: The function ____ilog2_NaN is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,108 WARN L667 CHandler]: The function _whoop_init is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 23:43:20,113 INFO L208 MainTranslator]: Completed translation [2023-08-30 23:43:20,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20 WrapperNode [2023-08-30 23:43:20,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 23:43:20,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 23:43:20,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 23:43:20,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 23:43:20,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,245 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,331 INFO L138 Inliner]: procedures = 1394, calls = 1531, calls flagged for inlining = 392, calls inlined = 68, statements flattened = 731 [2023-08-30 23:43:20,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 23:43:20,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 23:43:20,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 23:43:20,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 23:43:20,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 23:43:20,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 23:43:20,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 23:43:20,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 23:43:20,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (1/1) ... [2023-08-30 23:43:20,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 23:43:20,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:43:20,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 23:43:20,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 23:43:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 23:43:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-30 23:43:20,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 23:43:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-30 23:43:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 23:43:20,519 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 23:43:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 23:43:20,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 23:43:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-08-30 23:43:20,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 23:43:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-30 23:43:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 23:43:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:43:20,520 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:43:20,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 23:43:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 23:43:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 23:43:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-30 23:43:20,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 23:43:20,523 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 23:43:21,039 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 23:43:21,040 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 23:43:21,792 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 23:43:21,831 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 23:43:21,831 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-30 23:43:21,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:43:21 BoogieIcfgContainer [2023-08-30 23:43:21,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 23:43:21,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 23:43:21,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 23:43:21,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 23:43:21,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 11:43:16" (1/3) ... [2023-08-30 23:43:21,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c42395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:43:21, skipping insertion in model container [2023-08-30 23:43:21,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 11:43:20" (2/3) ... [2023-08-30 23:43:21,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12c42395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 11:43:21, skipping insertion in model container [2023-08-30 23:43:21,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:43:21" (3/3) ... [2023-08-30 23:43:21,842 INFO L112 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_current.i [2023-08-30 23:43:21,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 23:43:21,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 23:43:21,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-08-30 23:43:21,857 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 23:43:22,032 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 23:43:22,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 761 places, 801 transitions, 1618 flow [2023-08-30 23:43:22,344 INFO L130 PetriNetUnfolder]: 47/799 cut-off events. [2023-08-30 23:43:22,345 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 23:43:22,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 799 events. 47/799 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1092 event pairs, 0 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-08-30 23:43:22,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 761 places, 801 transitions, 1618 flow [2023-08-30 23:43:22,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 751 places, 791 transitions, 1591 flow [2023-08-30 23:43:22,367 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 23:43:22,375 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 751 places, 791 transitions, 1591 flow [2023-08-30 23:43:22,377 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 751 places, 791 transitions, 1591 flow [2023-08-30 23:43:22,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 751 places, 791 transitions, 1591 flow [2023-08-30 23:43:22,528 INFO L130 PetriNetUnfolder]: 47/791 cut-off events. [2023-08-30 23:43:22,528 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 23:43:22,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799 conditions, 791 events. 47/791 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 1005 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 629. Up to 9 conditions per place. [2023-08-30 23:43:22,537 INFO L119 LiptonReduction]: Number of co-enabled transitions 13172 [2023-08-30 23:44:34,460 WARN L222 SmtUtils]: Spent 12.84s on a formula simplification that was a NOOP. DAG size: 354 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:44:45,601 WARN L222 SmtUtils]: Spent 11.13s on a formula simplification that was a NOOP. DAG size: 324 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:45:00,519 WARN L222 SmtUtils]: Spent 14.91s on a formula simplification that was a NOOP. DAG size: 357 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:45:12,616 WARN L222 SmtUtils]: Spent 12.09s on a formula simplification that was a NOOP. DAG size: 327 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:45:29,280 WARN L222 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 280 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:47:27,650 WARN L222 SmtUtils]: Spent 1.95m on a formula simplification. DAG size of input: 583 DAG size of output: 581 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:48:31,245 WARN L222 SmtUtils]: Spent 1.06m on a formula simplification that was a NOOP. DAG size: 581 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:49:35,337 WARN L222 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 586 DAG size of output: 584 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:50:06,606 WARN L222 SmtUtils]: Spent 31.27s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-30 23:50:18,128 INFO L134 LiptonReduction]: Checked pairs total: 11159 [2023-08-30 23:50:18,128 INFO L136 LiptonReduction]: Total number of compositions: 885 [2023-08-30 23:50:18,140 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 23:50:18,144 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@db2d3f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 23:50:18,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-08-30 23:50:18,153 INFO L130 PetriNetUnfolder]: 6/11 cut-off events. [2023-08-30 23:50:18,153 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:50:18,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:18,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 23:50:18,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:18,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:18,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2949892, now seen corresponding path program 1 times [2023-08-30 23:50:18,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:18,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586061141] [2023-08-30 23:50:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:18,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:18,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:18,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586061141] [2023-08-30 23:50:18,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586061141] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:18,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:50:18,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 23:50:18,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410279481] [2023-08-30 23:50:18,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:18,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 23:50:18,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:18,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 23:50:18,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 23:50:18,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 772 out of 1686 [2023-08-30 23:50:18,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 42 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 773.5) internal successors, (1547), 2 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:18,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:18,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 772 of 1686 [2023-08-30 23:50:18,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:19,248 INFO L130 PetriNetUnfolder]: 43/93 cut-off events. [2023-08-30 23:50:19,248 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-08-30 23:50:19,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 93 events. 43/93 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 229 event pairs, 33 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 128. Up to 94 conditions per place. [2023-08-30 23:50:19,250 INFO L137 encePairwiseOnDemand]: 1677/1686 looper letters, 30 selfloop transitions, 0 changer transitions 3/33 dead transitions. [2023-08-30 23:50:19,250 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 141 flow [2023-08-30 23:50:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 23:50:19,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 23:50:19,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1586 transitions. [2023-08-30 23:50:19,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47034400948991695 [2023-08-30 23:50:19,270 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1586 transitions. [2023-08-30 23:50:19,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1586 transitions. [2023-08-30 23:50:19,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:19,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1586 transitions. [2023-08-30 23:50:19,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 793.0) internal successors, (1586), 2 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:19,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1686.0) internal successors, (5058), 3 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:19,297 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1686.0) internal successors, (5058), 3 states have internal predecessors, (5058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:19,299 INFO L175 Difference]: Start difference. First operand has 31 places, 42 transitions, 93 flow. Second operand 2 states and 1586 transitions. [2023-08-30 23:50:19,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 141 flow [2023-08-30 23:50:19,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 23:50:19,303 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 63 flow [2023-08-30 23:50:19,304 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=63, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2023-08-30 23:50:19,306 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-08-30 23:50:19,307 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 63 flow [2023-08-30 23:50:19,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 773.5) internal successors, (1547), 2 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:19,308 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:19,308 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 23:50:19,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 23:50:19,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:19,309 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:19,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1459000216, now seen corresponding path program 1 times [2023-08-30 23:50:19,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:19,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339348578] [2023-08-30 23:50:19,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339348578] [2023-08-30 23:50:20,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339348578] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:20,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 23:50:20,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 23:50:20,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518731242] [2023-08-30 23:50:20,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:20,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:50:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:50:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 23:50:20,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 762 out of 1686 [2023-08-30 23:50:20,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 63 flow. Second operand has 3 states, 3 states have (on average 763.6666666666666) internal successors, (2291), 3 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:20,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:20,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 762 of 1686 [2023-08-30 23:50:20,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:21,300 INFO L130 PetriNetUnfolder]: 30/67 cut-off events. [2023-08-30 23:50:21,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:50:21,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 67 events. 30/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 20 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 141. Up to 67 conditions per place. [2023-08-30 23:50:21,301 INFO L137 encePairwiseOnDemand]: 1682/1686 looper letters, 29 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-08-30 23:50:21,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 31 transitions, 127 flow [2023-08-30 23:50:21,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:50:21,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:50:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2319 transitions. [2023-08-30 23:50:21,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45848161328588377 [2023-08-30 23:50:21,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2319 transitions. [2023-08-30 23:50:21,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2319 transitions. [2023-08-30 23:50:21,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:21,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2319 transitions. [2023-08-30 23:50:21,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 773.0) internal successors, (2319), 3 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:21,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:21,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:21,328 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 63 flow. Second operand 3 states and 2319 transitions. [2023-08-30 23:50:21,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 31 transitions, 127 flow [2023-08-30 23:50:21,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 31 transitions, 127 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-30 23:50:21,329 INFO L231 Difference]: Finished difference. Result has 28 places, 31 transitions, 77 flow [2023-08-30 23:50:21,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=28, PETRI_TRANSITIONS=31} [2023-08-30 23:50:21,330 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-08-30 23:50:21,330 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 31 transitions, 77 flow [2023-08-30 23:50:21,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 763.6666666666666) internal successors, (2291), 3 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:21,332 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:21,332 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 23:50:21,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 23:50:21,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:21,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:21,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1941188084, now seen corresponding path program 1 times [2023-08-30 23:50:21,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:21,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535091274] [2023-08-30 23:50:21,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:21,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:22,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535091274] [2023-08-30 23:50:22,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535091274] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:50:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87999689] [2023-08-30 23:50:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:50:22,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 23:50:22,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-30 23:50:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:22,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2023-08-30 23:50:22,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:50:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 23:50:22,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:50:22,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87999689] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:22,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:50:22,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-08-30 23:50:22,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899332593] [2023-08-30 23:50:22,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:22,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 23:50:22,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:22,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 23:50:22,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-30 23:50:22,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 754 out of 1686 [2023-08-30 23:50:22,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 31 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:22,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:22,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 754 of 1686 [2023-08-30 23:50:22,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:23,367 INFO L130 PetriNetUnfolder]: 30/73 cut-off events. [2023-08-30 23:50:23,367 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 23:50:23,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 73 events. 30/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 199 event pairs, 8 based on Foata normal form. 8/71 useless extension candidates. Maximal degree in co-relation 161. Up to 62 conditions per place. [2023-08-30 23:50:23,369 INFO L137 encePairwiseOnDemand]: 1681/1686 looper letters, 32 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-08-30 23:50:23,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 161 flow [2023-08-30 23:50:23,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 23:50:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 23:50:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2298 transitions. [2023-08-30 23:50:23,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4543297746144721 [2023-08-30 23:50:23,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2298 transitions. [2023-08-30 23:50:23,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2298 transitions. [2023-08-30 23:50:23,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:23,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2298 transitions. [2023-08-30 23:50:23,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 766.0) internal successors, (2298), 3 states have internal predecessors, (2298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:23,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:23,398 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1686.0) internal successors, (6744), 4 states have internal predecessors, (6744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:23,399 INFO L175 Difference]: Start difference. First operand has 28 places, 31 transitions, 77 flow. Second operand 3 states and 2298 transitions. [2023-08-30 23:50:23,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 161 flow [2023-08-30 23:50:23,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 157 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-08-30 23:50:23,400 INFO L231 Difference]: Finished difference. Result has 30 places, 34 transitions, 99 flow [2023-08-30 23:50:23,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=99, PETRI_PLACES=30, PETRI_TRANSITIONS=34} [2023-08-30 23:50:23,402 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-30 23:50:23,402 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 34 transitions, 99 flow [2023-08-30 23:50:23,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 756.0) internal successors, (2268), 3 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:23,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:23,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:50:23,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-30 23:50:23,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:23,614 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:23,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:23,615 INFO L85 PathProgramCache]: Analyzing trace with hash 47287872, now seen corresponding path program 1 times [2023-08-30 23:50:23,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:23,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014379668] [2023-08-30 23:50:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:23,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:24,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014379668] [2023-08-30 23:50:24,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014379668] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:50:24,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460585471] [2023-08-30 23:50:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:24,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:24,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:50:24,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 23:50:24,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-30 23:50:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:25,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 435 conjunts are in the unsatisfiable core [2023-08-30 23:50:25,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:50:25,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:33,863 WARN L222 SmtUtils]: Spent 7.86s on a formula simplification. DAG size of input: 1587 DAG size of output: 207 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 23:50:33,869 INFO L321 Elim1Store]: treesize reduction 10808, result has 3.4 percent of original size [2023-08-30 23:50:33,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 20 select indices, 20 select index equivalence classes, 4 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 228 case distinctions, treesize of input 925 treesize of output 1205 [2023-08-30 23:50:37,570 INFO L321 Elim1Store]: treesize reduction 130, result has 32.3 percent of original size [2023-08-30 23:50:37,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 428 treesize of output 464 [2023-08-30 23:50:37,738 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 23:50:37,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 327 treesize of output 326 [2023-08-30 23:50:37,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 315 [2023-08-30 23:50:37,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 309 [2023-08-30 23:50:37,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 303 [2023-08-30 23:50:38,060 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-30 23:50:38,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 64 [2023-08-30 23:50:38,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 23:50:38,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 23:50:38,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:50:38,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460585471] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:38,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:50:38,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 7 [2023-08-30 23:50:38,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833888059] [2023-08-30 23:50:38,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:38,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-30 23:50:38,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:38,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-30 23:50:38,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-08-30 23:50:38,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 741 out of 1686 [2023-08-30 23:50:38,818 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 34 transitions, 99 flow. Second operand has 6 states, 6 states have (on average 742.1666666666666) internal successors, (4453), 6 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:38,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:38,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 741 of 1686 [2023-08-30 23:50:38,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:40,250 INFO L130 PetriNetUnfolder]: 26/66 cut-off events. [2023-08-30 23:50:40,250 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2023-08-30 23:50:40,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 66 events. 26/66 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 174 event pairs, 6 based on Foata normal form. 3/59 useless extension candidates. Maximal degree in co-relation 176. Up to 35 conditions per place. [2023-08-30 23:50:40,251 INFO L137 encePairwiseOnDemand]: 1674/1686 looper letters, 25 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2023-08-30 23:50:40,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 37 transitions, 183 flow [2023-08-30 23:50:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:50:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:50:40,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3741 transitions. [2023-08-30 23:50:40,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44377224199288257 [2023-08-30 23:50:40,260 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3741 transitions. [2023-08-30 23:50:40,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3741 transitions. [2023-08-30 23:50:40,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:40,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3741 transitions. [2023-08-30 23:50:40,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 748.2) internal successors, (3741), 5 states have internal predecessors, (3741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:40,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:40,282 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:40,283 INFO L175 Difference]: Start difference. First operand has 30 places, 34 transitions, 99 flow. Second operand 5 states and 3741 transitions. [2023-08-30 23:50:40,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 37 transitions, 183 flow [2023-08-30 23:50:40,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 37 transitions, 179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 23:50:40,284 INFO L231 Difference]: Finished difference. Result has 34 places, 35 transitions, 131 flow [2023-08-30 23:50:40,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=34, PETRI_TRANSITIONS=35} [2023-08-30 23:50:40,285 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 3 predicate places. [2023-08-30 23:50:40,285 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 35 transitions, 131 flow [2023-08-30 23:50:40,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 742.1666666666666) internal successors, (4453), 6 states have internal predecessors, (4453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:40,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:40,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:50:40,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-30 23:50:40,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-08-30 23:50:40,497 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:40,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:40,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1904473139, now seen corresponding path program 1 times [2023-08-30 23:50:40,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:40,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177083628] [2023-08-30 23:50:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:40,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:41,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:41,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177083628] [2023-08-30 23:50:41,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177083628] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:50:41,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007981825] [2023-08-30 23:50:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:41,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:41,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:50:41,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 23:50:41,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-30 23:50:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:41,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 17 conjunts are in the unsatisfiable core [2023-08-30 23:50:41,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:50:41,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:41,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 23:50:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 23:50:41,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:50:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007981825] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:41,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:50:41,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-08-30 23:50:41,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907606996] [2023-08-30 23:50:41,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:41,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 23:50:41,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 23:50:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-08-30 23:50:41,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 753 out of 1686 [2023-08-30 23:50:41,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 35 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 754.8) internal successors, (3774), 5 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:41,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:41,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 753 of 1686 [2023-08-30 23:50:41,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:42,212 INFO L130 PetriNetUnfolder]: 26/70 cut-off events. [2023-08-30 23:50:42,212 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2023-08-30 23:50:42,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 70 events. 26/70 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 186 event pairs, 8 based on Foata normal form. 4/66 useless extension candidates. Maximal degree in co-relation 215. Up to 50 conditions per place. [2023-08-30 23:50:42,213 INFO L137 encePairwiseOnDemand]: 1682/1686 looper letters, 28 selfloop transitions, 3 changer transitions 7/38 dead transitions. [2023-08-30 23:50:42,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 217 flow [2023-08-30 23:50:42,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 23:50:42,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 23:50:42,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3048 transitions. [2023-08-30 23:50:42,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45195729537366547 [2023-08-30 23:50:42,220 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 3048 transitions. [2023-08-30 23:50:42,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 3048 transitions. [2023-08-30 23:50:42,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:42,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 3048 transitions. [2023-08-30 23:50:42,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 762.0) internal successors, (3048), 4 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:42,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1686.0) internal successors, (8430), 5 states have internal predecessors, (8430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:42,235 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1686.0) internal successors, (8430), 5 states have internal predecessors, (8430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:42,235 INFO L175 Difference]: Start difference. First operand has 34 places, 35 transitions, 131 flow. Second operand 4 states and 3048 transitions. [2023-08-30 23:50:42,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 217 flow [2023-08-30 23:50:42,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 38 transitions, 197 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 23:50:42,237 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 99 flow [2023-08-30 23:50:42,237 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-08-30 23:50:42,238 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2023-08-30 23:50:42,238 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 99 flow [2023-08-30 23:50:42,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 754.8) internal successors, (3774), 5 states have internal predecessors, (3774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:42,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 23:50:42,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 23:50:42,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-30 23:50:42,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:42,448 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-08-30 23:50:42,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 23:50:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1801636529, now seen corresponding path program 2 times [2023-08-30 23:50:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 23:50:42,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091436700] [2023-08-30 23:50:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 23:50:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 23:50:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 23:50:43,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 23:50:43,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 23:50:43,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091436700] [2023-08-30 23:50:43,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091436700] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-30 23:50:43,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760253644] [2023-08-30 23:50:43,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-30 23:50:43,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:43,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 23:50:43,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-30 23:50:43,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-30 23:50:43,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-30 23:50:43,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-30 23:50:43,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 298 conjunts are in the unsatisfiable core [2023-08-30 23:50:44,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-08-30 23:50:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:50,794 WARN L222 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 1408 DAG size of output: 286 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-08-30 23:50:50,796 INFO L321 Elim1Store]: treesize reduction 9733, result has 6.0 percent of original size [2023-08-30 23:50:50,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 15 select indices, 15 select index equivalence classes, 9 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 140 case distinctions, treesize of input 584 treesize of output 1112 [2023-08-30 23:50:53,580 INFO L321 Elim1Store]: treesize reduction 83, result has 27.2 percent of original size [2023-08-30 23:50:53,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 421 treesize of output 424 [2023-08-30 23:50:53,678 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-08-30 23:50:53,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 327 treesize of output 326 [2023-08-30 23:50:53,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 315 treesize of output 315 [2023-08-30 23:50:53,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 309 [2023-08-30 23:50:53,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 303 [2023-08-30 23:50:53,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2023-08-30 23:50:53,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2023-08-30 23:50:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-30 23:50:53,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 25 [2023-08-30 23:50:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-30 23:50:53,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-30 23:50:53,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760253644] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 23:50:53,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-30 23:50:53,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 8 [2023-08-30 23:50:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217570355] [2023-08-30 23:50:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 23:50:53,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-30 23:50:53,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 23:50:53,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-30 23:50:53,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-08-30 23:50:54,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 740 out of 1686 [2023-08-30 23:50:54,471 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 99 flow. Second operand has 7 states, 7 states have (on average 741.2857142857143) internal successors, (5189), 7 states have internal predecessors, (5189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:54,471 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 23:50:54,471 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 740 of 1686 [2023-08-30 23:50:54,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 23:50:55,285 INFO L130 PetriNetUnfolder]: 12/34 cut-off events. [2023-08-30 23:50:55,285 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-30 23:50:55,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 34 events. 12/34 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 2 based on Foata normal form. 4/28 useless extension candidates. Maximal degree in co-relation 88. Up to 16 conditions per place. [2023-08-30 23:50:55,285 INFO L137 encePairwiseOnDemand]: 1676/1686 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2023-08-30 23:50:55,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 30 transitions, 151 flow [2023-08-30 23:50:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 23:50:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 23:50:55,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3730 transitions. [2023-08-30 23:50:55,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424673784104389 [2023-08-30 23:50:55,292 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3730 transitions. [2023-08-30 23:50:55,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3730 transitions. [2023-08-30 23:50:55,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 23:50:55,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3730 transitions. [2023-08-30 23:50:55,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 746.0) internal successors, (3730), 5 states have internal predecessors, (3730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:55,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:55,308 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1686.0) internal successors, (10116), 6 states have internal predecessors, (10116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:55,309 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 99 flow. Second operand 5 states and 3730 transitions. [2023-08-30 23:50:55,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 30 transitions, 151 flow [2023-08-30 23:50:55,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 131 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-08-30 23:50:55,310 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2023-08-30 23:50:55,310 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1686, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2023-08-30 23:50:55,310 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-08-30 23:50:55,311 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2023-08-30 23:50:55,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 741.2857142857143) internal successors, (5189), 7 states have internal predecessors, (5189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 23:50:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2023-08-30 23:50:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2023-08-30 23:50:55,314 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2023-08-30 23:50:55,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2023-08-30 23:50:55,315 INFO L805 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2023-08-30 23:50:55,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-30 23:50:55,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-30 23:50:55,525 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-08-30 23:50:55,529 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 23:50:55,529 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 23:50:55,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 11:50:55 BasicIcfg [2023-08-30 23:50:55,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 23:50:55,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 23:50:55,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 23:50:55,533 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 23:50:55,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 11:43:21" (3/4) ... [2023-08-30 23:50:55,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 23:50:55,539 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_configure [2023-08-30 23:50:55,539 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure whoop_wrapper_pc8736x_gpio_current [2023-08-30 23:50:55,560 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 94 nodes and edges [2023-08-30 23:50:55,562 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-08-30 23:50:55,563 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-08-30 23:50:55,563 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 23:50:55,642 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 23:50:55,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 23:50:55,643 INFO L158 Benchmark]: Toolchain (without parser) took 459388.97ms. Allocated memory was 81.8MB in the beginning and 771.8MB in the end (delta: 690.0MB). Free memory was 46.1MB in the beginning and 460.3MB in the end (delta: -414.1MB). Peak memory consumption was 274.4MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,643 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 23:50:55,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3857.63ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 45.9MB in the beginning and 68.2MB in the end (delta: -22.3MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 226.54ms. Allocated memory is still 130.0MB. Free memory was 68.2MB in the beginning and 56.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,644 INFO L158 Benchmark]: Boogie Preprocessor took 107.07ms. Allocated memory is still 130.0MB. Free memory was 56.5MB in the beginning and 50.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,644 INFO L158 Benchmark]: RCFGBuilder took 1383.60ms. Allocated memory is still 130.0MB. Free memory was 50.6MB in the beginning and 50.1MB in the end (delta: 490.2kB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,644 INFO L158 Benchmark]: TraceAbstraction took 453696.00ms. Allocated memory was 130.0MB in the beginning and 771.8MB in the end (delta: 641.7MB). Free memory was 49.4MB in the beginning and 468.9MB in the end (delta: -419.6MB). Peak memory consumption was 224.5MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,645 INFO L158 Benchmark]: Witness Printer took 109.64ms. Allocated memory is still 771.8MB. Free memory was 468.9MB in the beginning and 460.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-08-30 23:50:55,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3857.63ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 45.9MB in the beginning and 68.2MB in the end (delta: -22.3MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 226.54ms. Allocated memory is still 130.0MB. Free memory was 68.2MB in the beginning and 56.5MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.07ms. Allocated memory is still 130.0MB. Free memory was 56.5MB in the beginning and 50.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1383.60ms. Allocated memory is still 130.0MB. Free memory was 50.6MB in the beginning and 50.1MB in the end (delta: 490.2kB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * TraceAbstraction took 453696.00ms. Allocated memory was 130.0MB in the beginning and 771.8MB in the end (delta: 641.7MB). Free memory was 49.4MB in the beginning and 468.9MB in the end (delta: -419.6MB). Peak memory consumption was 224.5MB. Max. memory is 16.1GB. * Witness Printer took 109.64ms. Allocated memory is still 771.8MB. Free memory was 468.9MB in the beginning and 460.3MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.8s, 751 PlacesBefore, 31 PlacesAfterwards, 791 TransitionsBefore, 42 TransitionsAfterwards, 13172 CoEnabledTransitionPairs, 10 FixpointIterations, 561 TrivialSequentialCompositions, 192 ConcurrentSequentialCompositions, 80 TrivialYvCompositions, 23 ConcurrentYvCompositions, 29 ChoiceCompositions, 885 TotalNumberOfCompositions, 11159 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10150, independent: 10076, independent conditional: 0, independent unconditional: 10076, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6997, independent: 6969, independent conditional: 0, independent unconditional: 6969, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10150, independent: 3107, independent conditional: 0, independent unconditional: 3107, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 6997, unknown conditional: 0, unknown unconditional: 6997] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 174]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 940 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 453.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 416.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1415 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 908 mSDsluCounter, 699 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 558 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1876 IncrementalHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 141 mSDtfsCounter, 1876 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=131occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 25.8s InterpolantComputationTime, 70 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 60 ConstructedInterpolants, 2 QuantifiedInterpolants, 516 SizeOfPredicates, 127 NumberOfNonLiveVariables, 4423 ConjunctsInSsa, 762 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 23:50:55,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE